A filter material having a function of adsorbing and fixing arsenic and heavy metals and usage thereof. The filter material includes a porous ceramic substrate with porosity of 35%-85%, and zero-valent iron nanoparticles formed in situ within the porous ceramic substrate. The porous ceramic substrate has micropores of 2-10 micron, and fluffy amorphous silicon-iron-carbon structure is formed within each micropore. At least 25 wt % of ceramic component constituting the porous ceramic substrate is diatomaceous earth, and the fluffy amorphous silicon-iron-carbon structure within the micropore can form an adsorption film after water absorption. In the microstructure, the filter material obtained is configured as a porous and fluffy nose-like filter structure and generates an adsorption film, thereby greatly improving adsorption efficiency and adapting to changes in water quality and chemical environment. The used filter material will not fall off and no heavy metal will be separated therefrom, thereby ensuring the security of use.

A hybrid material comprising modified porous silica and biologically active agents is disclosed. In particular, the invention discloses the design and development of amorphous silica to stabilize biologically active microorganisms and their derived enzymes, for bioremediation of hazardous substances including polar or non-polar chemicals, biological hazardous waste, radioactive hazardous waste, with potential application in the field of environmental remediation.

A method of manufacturing a composite film, the method including: preparing a coating liquid including a resin and a filler and having a viscosity of from 0.1 Pa.Math.s to 5.0 Pa.Math.s: removing aggregates contained in the coating liquid by making the coating liquid pass through a filter having a minimum pore diameter that is larger than a maximum particle diameter of the aggregates; applying the coating liquid that has been subjected to the aggregate removal on one surface or both surfaces of a porous substrate, to form a coating layer; and solidifying the resin contained in the coating layer, to obtain a composite film including: the porous substrate; and a porous layer that is formed on one surface or both surfaces of the porous substrate and that contains the resin and the filler.

A loofah sponge enriched with steam activated biochar for removing arsenic from water. The loofah sponge can be a filtering media within a transparent acrylic cylinder. The filtering media can be used in methods and systems for removing arsenic from wastewater.

A method for enhancing sorption performance of a sorbent material includes the step of increasing a surface area of the sorbent material for adsorption of a fluid at an interface between the fluid and the sorbent material by arranging one or more apertures to be disposed on the sorbent material, wherein each of the one or more apertures is further arranged to define an interior space for absorption of the fluid.

A superabsorbent material generally free of organic solvents and having a high overall porosity and a high percentage of micropores are provided. The superabsorbent material is formed from a high-molecular weight linear water-soluble absorbent polymer, and contains a plurality of micropores having a size of about 150 m or less.

Disclosed herein are a superabsorbent polymer resin incorporated with a particles meeting the following properties i) to ii): i) a BET specific surface area of 300 to 1500 m.sup.2/g, ii) a porosity of 50% or more, and a method for preparing the same.

The invention relates to a substantially laminary manufacture comprising 2 substantially laminary layers in contact, wherein the layers comprise a woven, hydrophilic material.

The invention relates generally to solid supports for chromatography. In specific embodiments the invention provides for solid supports suitable for affinity chromatography along with methods, systems and kits which use the same.

A hollow tubular oil absorbing material includes: a core formed by a spring, and an outer shell formed by a flat sponge wrapped at the spring; wherein the flat sponge is fixed at both ends of the spring; the flat sponge fully covers all the spring or is sealed at a first end; a connecting tube is connected at a second end of the spring for communicating with a vacuum pump; a graphene oxide layer is coated at the outer sponge. The graphene oxide layer on the flat sponge of hollow tubular oil absorbing material is formed by immersion and coating under negative pressure. Further the reduction of graphene oxide is performed with hydrazine hydrate steam and followed by washing and drying. Finally, a hollow tubular oil absorbing material with a spring core and an outer grapheme-coated sponge structure is obtained, which can be applied to continuous oil-water separation.